Radio loud speaker



oq. 9, V1.928.

J. w. H. HANLl-:Y mino LOUD SPEAKER Filed March 22, 1927 mvENToR Beol'm.WHHanle ATTORNEY Patented oe. 9, 192s.

l UNITEDpsTATE n'ADfo 1.01m :v

s PATENT OFFICE.

somt w. n. man,

or New Yoan, N. Y.

Application illed Iareh $8, 1927. Seriallo. 177,432.

reasonable cost.

For further comprehension of the inven-` tion, and of the objects andadvantagesthe of, reference will be vhad to the vfollowing escriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

Referring tothe drawing forming a material part of this disclosure: f

Fig. 1 is a front elevational view of a device constructed according tothis nventionf Fig. 2 is a side elevational view thereof.

Fig. 3 is a. fragmentary, pail'tly sectionall view taken on the line3--3 of Fig. 4 is a vertical sectional view taken'onY the line 4 4 ofFig. 3.

The reference numeral 10 indicates gen-' erally a conch shell formedwith a side aperture 11, and has forced over the edges thereof a gasket12, drical member 13 is integral with a cover 14 separated by washer 15'froman edge cover 16;` The screws 17 serve tohold-parts 14, 15, and 16together., The edge cover 16 has a central cover 18 secured thereto bythe rivets 19. A perforated partition 20 rests against the inner sidecover 14 is a pair of diaphragm supporters 21, supporting a diaphragm 22connected by rod 23 to means Vhoused in central cover 18, and not shownon the drawing, for vibrating the diaphragm 228s controlled by a currentreceived through wires 24 suitably connected toa radio receiving set.

The outside d 'ameter of ber 13 is such that it -itsinto gasket 12.Formed in the outer side of cylindrical member 13 are a number ofrecesses 25, and in each recess atpairgof latch members 26 are hingedlymounte as at 27 so that in extended 'tion these latch members engage theoppositesides sket 12, and in closed position the lie Wit in therecesses, as shown in d lines .at 28. Each latch member is formed withan elongated slot 29 through which pins 30 pass. The pins 30 projectfrom disc 31 rotatably m unted in groove 32 1 n member preferably ofrubber. A cylin-v of the edge cover 16, and housed between the edges ofthis partition and the cylindrical meub 13. edge of disc 31 is. knurledto'facilitateturning. A cavity 32 communicates with' each ofthe recesses25, and housed in these Vcavities are tension springs 33 fastened to therear of the cavityby pins 34, the outer ends of the springs 33 beingattached to the pms 30, and normally urge the disc'31fand pins 30 tosuch position that the latches 26 are extended. f v

The conch therest of the device by manually turning disc 31, against therestraining action of SP permitting of sliding the conch shell V10 andattachedgasket 12 from the cylindrical memshell may be disengaged froml33, lowering the'latches 26, and thus b er 13. Any conch shell of anysize, providing it has the correct size, aperture 11, -may bere-attached to the `*rest of the device as is obvious from.the operationpf the various While I haveillustrated and described my yinvention withsome degree of particularity,r I reallzethat in' practice variousalterationsthercin may be made. l I therefore reserve the ri ht andprivilege f changing the details o construction or otherwise alteringthe arrangement of the correlated parts without departing from thespirit or appended claims.

Having I claim as newand desire to secure States Letters Patent is: v

1. AA radio loud speaking unit attachment for conchshellshavmg a sideaperture with a-gasket forced -on prlsing Va loud speaking by Unitedunit, a cylindrical the scope of the thus described my invention whattheedges thereof, commember projecting therefrom, .and engageable in thegasket, recesses formed in the outer vside ofthe cylindrical member, apair o latches hingedly mounted in each recess, and e geable with thesides of the gasket when in extended position, the latches being formedwith elongated apertures, pins passing through the apertures, a discsupporting the pins, the said disc being rotatably mounted on the beingformed with cavities comsprings housedin the cavities, with the pins.

cylindrical member, the said cylindrif member n Vmunicating -with therecesses, and 'tenslon and engaged 1 2. A device ofthe classdescribedcomprisa conch shell .having a side aperture therein, a'gasket disposedaround the edge of said side aperture, a radio loudspeaking unitcomprising acylin'drical extension disposed within. said gasket, latchmechanism l p ivotally mounted on Vsaid cylindrical exten?sion'compri's'ing an extension. adapted to be disposed within said shelland'to engage the inner surface of said gasket and anextension adaptedlt engage the outer surface of said gasket, and means comprising springsattached to said cylindrical'extension and to said extensions forresiliently retaining said latch mechanism in extended position forpreventing separation vof said shell 'and said v, loud spea er.

Hsaid side aperture,

3, lA device of the class described, comprising a conch shell having `aside aperture therein, a gasket disposed around the edge of a radio loudspeaking unit comprisinfl| a cylindrical extension disposed within saidgasket, latch mechanism pivotally mounted 'on said cylindrical extensioncomprising an extension adapted'to be disposed within said s hell and toengage the -1nner Surface of said gasket and an extension adapted toengage` the outer Ksurface of said gasket,

-meanscomprising springs attached to said cylindrical for resilientlyretaining said nism in extended extension andA to said extensions latchmecha'- posl'tlon for preventing f separation of said shell and saidloud speaker,

' action of said sprintorender sai cylindriaperture in the si tensionthereof and means for rotating said latch mechanism comprising a washerJournaled on said cyl-V -inder and a pin disposed through slots in saidextension for rotating the same a ainst the cal extensionse arale fromsaid shell. f 4.1A device'o the class inga sound amplifyin `memberhaving de tereof a radio -loud peakin unit comprising a tubularextension ispcsev in said a erture, latch mechanism comprising pairs o-spaced apart extensions pivotally mounted on said tubular extension,the outermost. extension of each of said pairs of extensions beingadapted to be disposed within said am 'lifying member adjacent thevinner surface't ereof and the innermost exbeing adapted to, bev positosaid fingers for retai described compris:

tioned adjacent the outer surface of said.

amplifylng-member, springs attached to said extensions for rotating thesame outwardly from said tubular extension, and means comprsin'g awasher journaled on said tubular extension and connected with 'each of-s'aid for rotating the same'in- Wardly relative to said tubularextension to permit separation of said loud speaking unit and saidamplifying member.l

5. A device of the class described comprisin a conch shell havin si ethereof, a loud spea ing unit comprising a tubular member disposedWit-hin said aper ture, a pluralityof fingers pivotally attached to saidtubular member adapted to be positioned within said shell, .and aplurality of pairs of extensions springs each attached at one end tosaid tubular member and at their other endvto said 1i ers for retainin,the'same disposed out- Wardly vfrom said tu ular member to preventseparation of the latter from said shell.

6. device of the class described compris,- in a conch shell'havin si ethereof, a loud spea ng unit comprising a tubular-member disposed withinsaid aperture, a plurality of fingers ,pivotally attached to'saidaperture, a plurality of otally attached to 4ed to rality said tubularmemb be positioned within said shell, a pluer and at'their other end thesame dis` an aperture in the:

anv aperture in the said tubular member adaptof springs each attached atone end. to-

fingers pivposed outwardly from said'tuiular member to preventseparation ofthe latter from said Jshell, and a' washer rotativelymounted on said tubular member and operatively con? fingers adapted to`nected3 with each of said rotate'said fingers against the action`ofvsai'd lspring for permitting separation of said shell and tubularmember. i

In testimony whereof I have aiiixed signature. 'f

i JHN W. H. HANLEY."

